EP 0346063 A3 19900718 - MAGNETO-OPTICAL INFORMATION RECORDING METHOD AND APPARATUS
Title (en)
MAGNETO-OPTICAL INFORMATION RECORDING METHOD AND APPARATUS
Publication
Application
Priority
JP 14059488 A 19880609
Abstract (en)
[origin: EP0346063A2] This specification discloses a magneto-optical information recording and erasing method comprising the step of scanning tracks on a magneto-optical recording medium by a light beam emitted from an optical head while applying a bias magnetic field in a predetermined direction to the medium, and effecting one of the recording and erasing of information, the step of moving the optical head to a desired position across the tracks and at the same time, reversing the direction of application of the bias magnetic field, and the step of scanning the tracks on the medium from the desired position by the light beam emitted from the optical head while applying a bias magnetic field in the reversed direction to the medium, and effecting the other of the recording and erasing of the information. The specification also discloses a magneto-optical information recording apparatus for carrying out such method.
IPC 1-7
IPC 8 full level
G11B 5/02 (2006.01); G11B 11/10 (2006.01); G11B 11/105 (2006.01); G11B 19/02 (2006.01)
CPC (source: EP)
G11B 11/10504 (2013.01); G11B 11/10517 (2013.01); G11B 11/10556 (2013.01); G11B 11/10595 (2013.01); G11B 19/02 (2013.01)
Citation (search report)
- [X] EP 0241222 A1 19871014 - CANON KK [JP]
- [X] US 4701894 A 19871020 - WATSON EDWIN G [US]
- [X] EP 0164745 A2 19851218 - HITACHI LTD [JP]
- [YP] PROCEEDINGS OF SPIE Optical Data storage topical meeting vol. 1078, 17 January 1989, Bellingham,WA,USA pages 230 - 238; T.Muraki et al: "Full-heigth magneto-optic rewritable disk drive "
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0346063 A2 19891213; EP 0346063 A3 19900718; JP H01311441 A 19891215
DOCDB simple family (application)
EP 89305681 A 19890606; JP 14059488 A 19880609